Wentworth Mercer Natural Pocket 2000 King Size Mattress
The Wentworth Mercer Natural Pocket 2000 is a firm pocket spring mattress with 2,000 individually pocketed steel springs, which means each spring reacts to your body separately rather than the whole surface moving at once.
- Genuinely firm feel
- Drier, fresher sleep surface
- Minimises partner disturbance
£739
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Wentworth Mercer Natural Pocket 2000 Mattress
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Mattress details
Mattress
Wentworth Mercer Natural Pocket 2000 Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
4
Layer Details
Cotton comfort layer
Cotton fibres naturally wick away moisture, which means a drier, fresher feel through the night. This is the layer closest to you.
Polyester comfort layer
Polyester fibres encourage airflow to move heat and moisture away from your body. Helpful if you're a warm sleeper.
Soft white fibres
Two layers of soft white fibres provide cushioned comfort while helping the mattress retain its shape. They also add durability, so the surface should stay consistent for longer.
Pocket springs support system
A core of 2,000 sturdy steel springs, each encased in its own pocket, responds individually to motion and pressure. In practice, that means personalised support and less disturbance when a partner moves.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- 7.5cm more each than a UK double: Moving up from a UK double gives each of you 7.5cm more width, which means a stray elbow or knee is less likely to end up on your partner's side.
- Room for a partner over six foot: At 200cm long, the UK king is 10cm longer than a UK double, so a tall sleeper can stretch out without their feet pressing against the end.
- Less movement across the bed: Each of the 2,000 springs sits in its own pocket, so when one partner turns over on a UK king, less of that motion travels across to the other.
- Cooler with two people sharing: Cotton and polyester layers near the surface help draw heat and moisture away, which matters a little more when two bodies are warming one mattress all night.
- Less floor than a UK super king: We suggest allowing at least 2.7m x 2.9m for the UK king, compared with at least 3m x 2.9m for the UK super king.
This size suits you if...
You share the bed every night and keep knocking elbows on a UK double, one of you is over six foot and wakes with their feet at the very edge, or you keep different hours and want the early riser's movement to reach the other side less.
Consider another size if...
Your bedroom falls short of our suggested 2.7m x 2.9m once wardrobes and bedside tables are in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is the Wentworth Mercer Natural Pocket 2000 UK king big enough for two people?
For most couples, yes. The UK king gives you 75cm each, which is 7.5cm more per person than the UK double. If you both sprawl or want real separation, the UK super king gives 90cm each, so the UK king gives 15cm less each by comparison.
Is a UK king mattress long enough for someone over six foot?
The Natural Pocket 2000 UK king is 200cm long, or 6ft 6in. That is 10cm longer than the UK double, and the same length as the UK super king, so sizing up further gains width but no extra length for a tall partner.
Will I feel my partner moving on the Natural Pocket 2000 in a UK king?
You should feel less than on a smaller mattress. The pocketed springs react individually, so movement tends to stay near the person making it, and the UK king's extra width puts a little more distance between you. A very light sleeper beside a restless partner may still notice some movement.
Should we choose the UK king or UK super king Wentworth Mercer Natural Pocket 2000?
Choose the UK king if your room is tighter: we suggest at least 2.7m x 2.9m, with 3.2m x 3.2m comfortable. The UK super king needs at least 3m x 2.9m but gives 90cm each against the UK king's 75cm each. Both are 200cm long.
Is a UK king big enough for two people and a dog?
It can be tight. With 75cm each for two people sharing the UK king, a dog that settles between you will take space from someone. If the dog sleeps on the bed every night, the UK super king's 90cm each gives noticeably more room, provided your bedroom allows at least 3m x 2.9m.